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Polio this week

What the latest routine immunization coverage estimates mean for eradication
The newly-released 2025 WHO/UNICEF Estimates of National Immunization Coverage (WUENIC) show a mixed picture for polio. More children are fully protected, with completion of the full inactivated polio vaccine schedule climbing to 74% globally and leaping from 47% to 60% in Africa. But hard work remains: 54% of the world’s zero-dose children, who have never received any vaccines, live in fragile, conflict-affected settings — including many of the countries tackling polio transmission. Learn what the numbers mean for eradication, and why ending polio and strengthening routine immunization must go hand-in-hand to finish the job.

Women football stars team up to kick polio out of Africa
As the Women’s Africa Cup of Nations kicks off, some of the continent’s biggest football stars are stepping up to end polio. The “Kick Out Polio” campaign features 11 women footballers from Côte d’Ivoire, Cameroon and Nigeria, alongside youth advocates and influential voices, calling on African leaders to renew commitment, sustain investment and reach every child. The timing matters: variant poliovirus detections across Africa fell 50% in the first half of 2026, but conflict, misinformation and shrinking resources threaten hard-won gains. Read how women athletes are speaking up for this final push and access the campaign resources.

Zambia targets 3.9 million children in latest polio vaccination campaign
Following poliovirus detection earlier this year, Zambia launched the third round of its polio vaccination campaign this month, with a focus on reaching remaining zero-dose children. The launch also marked the inauguration of a new solarized National Vaccine Store, marking a major step forward to increase the strength and resilience of the country’s vaccine cold chain. Find out how Zambia is leveraging both campaigns and the routine immunization system to close immunity gaps and reach every child.

Summary of new polioviruses this week: 

  • Pakistan: two WPV1-positive environmental samples
  • Democratic Republic of the Congo: four cVDPV2 cases
  • Lao People’s Democratic Republic: one cVDPV1 case
  • South Sudan: one cVDPV1 case
Country updates as of 29 July 2026

More information on the countries that have reported cases and/or environmental samples this week.

  • No WPV1 cases were reported this week (most recent case: 7 April 2026). The total number of cases in 2026 is three. The total number of cases in 2025 is 31.
  • Two WPV1-positive environmental samples were reported this week from Sindh (most recent positive environmental sample: 1 July 2026).

  • Four cVDPV2 cases were reported this week from Haut Lomami province, with onset of paralysis on 11 April 2026, 5 June 2026, 10 June 2026 and 15 June 2026 (most recent case). The number of cVDPV2 cases in 2026 is 15. The number of cVDPV2 cases in 2025 is eleven.
  • No cVDPV1 cases were reported this week. The number of cVDPV1 cases from 2025 is one (onset of paralysis: 25 June 2025).

  • One cVDPV1 case was reported this week from Borikhamxay province, with onset of paralysis on 31 May 2026 (most recent case). Three cases have been reported in 2026. There was one case reported in 2025.

  • One cVDPV1 case was reported this week, from Upper Nile province, with onset of paralysis on 10 June 2026 (most recent case). There are eight cVDPV1 cases reported in 2026.
  • No cVDPV1-positive environmental samples were reported this week (most recent positive environmental sample: 16 June 2026)
  • No cVDPV2-positive environmental samples were reported this week (most recent positive environmental sample: 12 May 2026).